Because of the lack of electricity, the hospital hall was pitch black, and it was the kind of darkness that could not be reached, but among the four of their super soldiers, I am afraid that only Gaia would be troubled by this kind of problem.

Gong Piqing can quickly mutate night vision in a dark environment, and his mutation ability is even better than the most advanced night vision devices; Not to mention Hades, as the "human radar" among the four super soldiers, he can see all the details of the hospital even with his eyes closed; As for the ghost, as a top assassin, the darkness itself is his most advantageous barrier, and his specially treated eyes can adapt to the dark environment faster than Gong Piqing, so only the power-type Gaia can see things with the help of night vision devices in this environment.

It's just that the situation in this is something they didn't expect.

It stands to reason that Xiguan Renai's side is not within the scope of their Mill Research Institute, that is to say, the density of zombies in this area should be extremely high, plus there are so many permanent mental patients living in the hospital, once the virus breaks out, the number and density of zombies here should be no less than the city's central business district, but when they really walked into the hospital, they found that although there are indeed a lot of zombies here, most of them are zombie corpses!

"This ...... How could it be ......" Gong Piqing was directly stunned when he saw the zombie corpses lying on the floor of the hall, could it be that the people from their Mill Research Institute had already come here?

Or did they do it themselves?

With the appearance of the night vision mutation ability, Gong Piqing saw more details in the hall clearly, only to see that the ground of this huge reception hall was almost completely soaked in the black and red blood of the zombies at this time, and the faces of those zombies still retained the fierceness and greed before death, all of them were killed by blunt objects hit on the head, it seems that the people who did all this know the weaknesses of the zombies very well.

"Strange ......," the Immortal muttered softly.

"What's wrong?"

"I didn't detect any suspicious elements in the air, suggesting that these zombies were probably killed a long time ago, but based on the blood clotting on the ground, they should have been dead for less than two weeks." Hades said with a frown.

"You're saying their killers are suspicious?" Gong Piqing asked.

"It's not very suspicious, it's quite suspicious, it's clearly a transparent person, whether it's in the air, on the wall, or on the zombies, there are no suspicious particles, isn't it very suspicious?" Hades said, turning to face him, "Think about it, if it was really done by the people of our Mill Research Institute or their people who loved themselves in Xiguan, when they killed these zombies, the zombies shed so much blood, they would definitely leave their footprints on the ground, but now have you found any extra footprints?" Not a single one! ”

Gong Piqing subconsciously looked at his feet, indeed, the blood on the ground has been dry for a long time, even if they stand on it, they will not leave footprints, but those who kill these zombies are different, the blood of the zombies will be very viscous after they die, like a layer of paint sprinkled on the ground, stepping on it will leave a fairly obvious footprint, but now, in addition to the footprints of these zombies themselves and the traces left by them after falling to the ground, there is really no extra footprint in the blood on the ground!

"Even if he let the ghost come, it is almost impossible for him to do such a scene, and these zombies are killed by a blunt weapon at a glance, and the ghost basically does not use this kind of blunt weapon, only the kind of light short knife or the long knife with strong lethality; Also, no matter what kind of weapon that person used to kill these zombies, after they killed the first zombie, there will inevitably be some traces of the first zombie on the weapon, and then as he kills more zombies with that weapon, then there will definitely be traces of other zombies on the wounds of those zombies, but now, each of them is as if they were killed by a brand new weapon. Hades stood still, reasoning for him like a detective.

"If that's the case, throwing the corpse won't be valid......," Gong Piqing muttered thoughtfully.

Although the words of Hades sounded very abstract, he could still understand them, because Hades' mental power allowed him to examine some details around him from a microscopic perspective, and even if a zombie had a hair left by the murderer, he could accurately find out, and he knew Hades, if the situation was not so serious, Hades would not be as nervous as he is now.

"Isn't there any way you can find their death?" The Hades seemed to have thought about it without coming to a conclusion, and finally looked at him helplessly.

Gong Piqing also shook his head helplessly, and said in his heart, "You can't find any clues with this supercomputer, what else can I see......

"It's like they've been killed by a ghost that has come and gone without a trace, like ...... Someone has the same mental power as me, because only mental attacks can do all this! Leave no footprints or traces! Hades said as if he had come to an understanding.

Gong Piqing was shocked in his heart, yes, why didn't he expect it, this kind of attack method that neither leaves any footprints nor leaves any clues at the murderer's wound, isn't it completely consistent with the Immortal King's mental power attack! To put it bluntly, Hades' mind attack is to kill the target with that kind of abstract idea that cannot be seen or touched, and it can also do that kind of "murder in the air", isn't it exactly corresponding to the situation in front of you!

"Based on the blood clotting, they must have died two weeks ago, and we were still in the Demon Realm two weeks ago, which means that there is a person on Earth who has a similar mind control like me who has bloodbathed here." Hades said.

"But if it's a bloodbath, what about the zombie that just fell? If you were asked to find a way to wash this place in blood, could you just leave that zombie behind? Gong Piqing asked with a frown.

Hades took a deep breath, and the problem seemed to be in a puzzle again, "There is a possibility, that is, when the murderer came here, the zombie we met just now had not yet produced a corpse transformation or was not infected, and the murderer just killed the one that had been infected, so that guy survived, but who did all this......"

Gong Piqing's heart also became nervous all of a sudden, at the beginning, he first met an elemental mage with an ability similar to him and his own attributes were stronger than him in the country of extreme cold, and now if there is still a person on the earth with an ability similar to the Hades, if that person is on their side, then it's okay to say, what if it's an enemy?

In terms of ability, Hades' ability is undoubtedly the most terrifying of the four of them, Hades is the kind of killer who can really kill people invisibly, his attacks are even more difficult to dodge than the attacks of ghosts, if there is really an enemy around them who is "the same style as Hades", then they can be said to be under the surveillance of the enemy all the time, and they may be killed by the enemy anytime and anywhere!

"When I was in the country of extreme cold, I met the elemental mage such a 'World Tree No. 2', and now when I come to Earth, don't meet a 'Hades No. 2'......" Hades muttered, gesturing to Gong Piqing, "Go, you lead the way in front, and I'll be responsible for monitoring the surroundings for you." ”

Gong Piqing was stunned for a moment, and then hesitated to lead the way into a corridor; After such a toss, he suddenly didn't want to be "nostalgic" again, he was worried that there was really a "Hades No. 2" guarding here, if that "Hades No. 2" was weaker than Hades, it would be fine, but if it was really so much stronger than their real people like the elemental mage, then the two of them might not be able to fight together......

They walked forward lightly like two thieves who had infiltrated the hospital, and in order to minimize the sound, a layer of feline-like foot pads mutated under Gong Piqing's feet, and Hades directly used his mental power to float himself; Because there was no electricity, they couldn't use the elevator to go upstairs, so they had to climb up the stairwell.

The general situation here is not much different from what they guessed at the beginning, the density of zombies is indeed very large, and there are not even a single place in the stairwell where there are zombies densely, but these zombies have all turned into corpses, and the murderer killed them all by hitting them on the head, and there are no extra footprints on the ground.

This so-called "nostalgic journey" has completely turned into a terrifying mystery at this time, although both of them are very scared in their hearts, but if they don't really understand how these zombies died, I'm afraid they will always be shrouded in this inexplicable shadow of fear......